debugger/debugger.h

   1 /*
   2  * Debugger definitions
   3  *
   4  * Copyright 1995 Alexandre Julliard
   5  */
   6
   7 #ifndef __WINE_DEBUGGER_H
   8 #define __WINE_DEBUGGER_H
   9
  10 #include <sys/types.h> /* u_long ... */
  11 #include <assert.h>
  12 #include "windef.h"
  13 #include "winbase.h"
  14 #include "wine/exception.h"
  15
  16 #ifdef __i386__
  17 #define STEP_FLAG 0x00000100 /* single step flag */
  18 #define V86_FLAG  0x00020000
  19 #endif
  20
  21 #define SYM_FUNC         0x0
  22 #define SYM_DATA         0x1
  23 #define SYM_WIN32        0x2
  24 #define SYM_WINE         0x4
  25 #define SYM_INVALID      0x8
  26 #define SYM_TRAMPOLINE   0x10
  27 #define SYM_STEP_THROUGH 0x20
  28
  29 enum    debug_type {DT_BASIC, DT_CONST, DT_POINTER, DT_ARRAY, DT_STRUCT, DT_ENUM, DT_TYPEDEF, DT_FUNC, DT_BITFIELD};
  30
  31
  32 /*
  33  * Return values for DEBUG_CheckLinenoStatus.  Used to determine
  34  * what to do when the 'step' command is given.
  35  */
  36 #define FUNC_HAS_NO_LINES       (0)
  37 #define NOT_ON_LINENUMBER       (1)
  38 #define AT_LINENUMBER           (2)
  39 #define FUNC_IS_TRAMPOLINE      (3)
  40
  41 /*
  42  * For constants generated by the parser, we use this datatype
  43  */
  44 extern struct datatype * DEBUG_TypeInt;
  45 extern struct datatype * DEBUG_TypeIntConst;
  46 extern struct datatype * DEBUG_TypeUSInt;
  47 extern struct datatype * DEBUG_TypeString;
  48
  49 typedef struct
  50 {
  51     DWORD               seg;  /* 0xffffffff means current default segment (cs or ds) */
  52     DWORD               off;
  53 } DBG_ADDR;
  54
  55 #define DV_TARGET       0xF00D
  56 #define DV_HOST         0x50DA
  57
  58 typedef struct
  59 {
  60    struct datatype*     type;
  61    int                  cookie; /* DV_??? */
  62    DBG_ADDR             addr;
  63 } DBG_VALUE;
  64
  65 struct list_id
  66 {
  67     char * sourcefile;
  68     int    line;
  69 };
  70
  71 struct  wine_lines {
  72   unsigned long         line_number;
  73   DBG_ADDR              pc_offset;
  74 };
  75
  76 struct symbol_info
  77 {
  78   struct name_hash * sym;
  79   struct list_id     list;
  80 };
  81
  82 typedef struct wine_lines WineLineNo;
  83
  84 /*
  85  * This structure holds information about stack variables, function
  86  * parameters, and register variables, which are all local to this
  87  * function.
  88  */
  89 struct  wine_locals {
  90   unsigned int          regno:8;        /* For register symbols */
  91   signed int            offset:24;      /* offset from esp/ebp to symbol */
  92   unsigned int          pc_start;       /* For RBRAC/LBRAC */
  93   unsigned int          pc_end;         /* For RBRAC/LBRAC */
  94   char                * name;           /* Name of symbol */
  95   struct datatype     * type;           /* Datatype of symbol */
  96 };
  97
  98 typedef struct wine_locals WineLocals;
  99
 100 enum exec_mode
 101 {
 102     EXEC_CONT,                  /* Continuous execution */
 103     EXEC_PASS,                  /* Continue, passing exception to app */
 104     EXEC_STEP_OVER,             /* Stepping over a call to next source line */
 105     EXEC_STEP_INSTR,            /* Step to next source line, stepping in if needed */
 106     EXEC_STEPI_OVER,            /* Stepping over a call */
 107     EXEC_STEPI_INSTR,           /* Single-stepping an instruction */
 108     EXEC_FINISH,                /* Step until we exit current frame */
 109     EXEC_STEP_OVER_TRAMPOLINE,  /* Step over trampoline.  Requires that
 110                                  * we dig the real return value off the stack
 111                                  * and set breakpoint there - not at the
 112                                  * instr just after the call.
 113                                  */
 114     EXEC_KILL                   /* terminate debugging session */
 115 };
 116
 117 #define DBG_BREAK 0
 118 #define DBG_WATCH 1
 119
 120 typedef struct
 121 {
 122     DBG_ADDR      addr;
 123     WORD          enabled : 1,
 124                   type : 1,
 125                   is32 : 1,
 126                   refcount : 13;
 127     WORD          skipcount;
 128     union {
 129        BYTE          opcode;
 130        struct {
 131           BYTE          rw : 1,
 132                         len : 2;
 133           BYTE          reg;
 134           DWORD         oldval;
 135        } w;
 136     } u;
 137     struct expr * condition;
 138 } BREAKPOINT;
 139
 140 typedef struct tagDBG_THREAD {
 141     struct tagDBG_PROCESS*      process;
 142     HANDLE                      handle;
 143     DWORD                       tid;
 144     LPVOID                      start;
 145     LPVOID                      teb;
 146     int                         wait_for_first_exception;
 147     int                         dbg_mode;
 148     enum exec_mode              dbg_exec_mode;
 149     int                         dbg_exec_count;
 150     BREAKPOINT                  stepOverBP;
 151     struct tagDBG_THREAD*       next;
 152     struct tagDBG_THREAD*       prev;
 153 } DBG_THREAD;
 154
 155 typedef struct tagDBG_PROCESS {
 156     HANDLE                      handle;
 157     DWORD                       pid;
 158     DBG_THREAD*                 threads;
 159     int                         num_threads;
 160     struct tagDBG_MODULE*       modules;
 161     /*
 162      * This is an index we use to keep track of the debug information
 163      * when we have multiple sources.  We use the same database to also
 164      * allow us to do an 'info shared' type of deal, and we use the index
 165      * to eliminate duplicates.
 166      */
 167     int                         next_index;
 168     struct tagDBG_PROCESS*      next;
 169     struct tagDBG_PROCESS*      prev;
 170 } DBG_PROCESS;
 171
 172 extern  DBG_PROCESS*    DEBUG_CurrProcess;
 173 extern  DBG_THREAD*     DEBUG_CurrThread;
 174 extern  CONTEXT         DEBUG_context;
 175
 176 #define DEBUG_READ_MEM(addr, buf, len) \
 177       (ReadProcessMemory(DEBUG_CurrProcess->handle, (addr), (buf), (len), NULL))
 178
 179 #define DEBUG_WRITE_MEM(addr, buf, len) \
 180       (WriteProcessMemory(DEBUG_CurrProcess->handle, (addr), (buf), (len), NULL))
 181
 182 #define DEBUG_READ_MEM_VERBOSE(addr, buf, len) \
 183       (DEBUG_READ_MEM((addr), (buf), (len)) || (DEBUG_InvalLinAddr( addr ),0))
 184
 185 #define DEBUG_WRITE_MEM_VERBOSE(addr, buf, len) \
 186       (DEBUG_WRITE_MEM((addr), (buf), (len)) || (DEBUG_InvalLinAddr( addr ),0))
 187
 188 typedef struct tagDBG_MODULE {
 189    struct tagDBG_MODULE*        next;
 190    void*                        load_addr;
 191    char*                        module_name;
 192    char                         status;
 193    char                         type;
 194    short int                    dbg_index;
 195    HMODULE                      handle;
 196    void*                        extra_info;
 197 } DBG_MODULE;
 198
 199 /* status field */
 200 #define DM_STATUS_NEW           0
 201 #define DM_STATUS_LOADED        1
 202 #define DM_STATUS_ERROR         2
 203
 204 /* type field */
 205 #define DM_TYPE_UNKNOWN         0
 206 #define DM_TYPE_ELF             1
 207 #define DM_TYPE_NE              2
 208 #define DM_TYPE_PE              3
 209
 210 #ifdef __i386__
 211 #ifdef REG_SP  /* Some Sun includes define this */
 212 #undef REG_SP
 213 #endif
 214
 215 enum debug_regs
 216 {
 217     REG_EAX, REG_EBX, REG_ECX, REG_EDX, REG_ESI,
 218     REG_EDI, REG_EBP, REG_EFL, REG_EIP, REG_ESP,
 219     REG_AX,  REG_BX,  REG_CX,  REG_DX,  REG_SI,
 220     REG_DI,  REG_BP,  REG_FL,  REG_IP,  REG_SP,
 221     REG_CS,  REG_DS,  REG_ES,  REG_SS,  REG_FS, REG_GS
 222 };
 223 #endif
 224
 225 #define OFFSET_OF(__c,__f)              ((int)(((char*)&(((__c*)0)->__f))-((char*)0)))
 226
 227   /* debugger/break.c */
 228 extern void DEBUG_SetBreakpoints( BOOL set );
 229 extern void DEBUG_AddBreakpoint( const DBG_VALUE *addr );
 230 extern void DEBUG_AddWatchpoint( const DBG_VALUE *addr, int is_write );
 231 extern void DEBUG_DelBreakpoint( int num );
 232 extern void DEBUG_EnableBreakpoint( int num, BOOL enable );
 233 extern void DEBUG_InfoBreakpoints(void);
 234 extern BOOL DEBUG_HandleTrap(void);
 235 extern BOOL DEBUG_ShouldContinue( DWORD code, enum exec_mode mode, int * count );
 236 extern void DEBUG_SuspendExecution( void );
 237 extern enum exec_mode DEBUG_RestartExecution( enum exec_mode mode, int count );
 238 extern BOOL DEBUG_IsFctReturn(void);
 239 extern int DEBUG_AddBPCondition(int bpnum, struct expr * exp);
 240
 241   /* debugger/db_disasm.c */
 242 extern void DEBUG_Disasm( DBG_ADDR *addr, int display );
 243
 244   /* debugger/expr.c */
 245 extern void DEBUG_FreeExprMem(void);
 246 struct expr * DEBUG_RegisterExpr(enum debug_regs);
 247 struct expr * DEBUG_SymbolExpr(const char * name);
 248 struct expr * DEBUG_ConstExpr(int val);
 249 struct expr * DEBUG_StringExpr(const char * str);
 250 struct expr * DEBUG_SegAddr(struct expr *, struct expr *);
 251 struct expr * DEBUG_USConstExpr(unsigned int val);
 252 struct expr * DEBUG_BinopExpr(int oper, struct expr *, struct expr *);
 253 struct expr * DEBUG_UnopExpr(int oper, struct expr *);
 254 struct expr * DEBUG_StructPExpr(struct expr *, const char * element);
 255 struct expr * DEBUG_StructExpr(struct expr *, const char * element);
 256 struct expr * DEBUG_ArrayExpr(struct expr *, struct expr * index);
 257 struct expr * DEBUG_CallExpr(const char *, int nargs, ...);
 258 struct expr * DEBUG_TypeCastExpr(struct datatype *, struct expr *);
 259 extern DBG_VALUE DEBUG_EvalExpr(struct expr *);
 260 extern int DEBUG_DelDisplay(int displaynum);
 261 extern struct expr * DEBUG_CloneExpr(const struct expr * exp);
 262 extern int DEBUG_FreeExpr(struct expr * exp);
 263 extern int DEBUG_DisplayExpr(const struct expr * exp);
 264
 265   /* debugger/display.c */
 266 extern int DEBUG_DoDisplay(void);
 267 extern int DEBUG_AddDisplay(struct expr * exp, int count, char format);
 268 extern int DEBUG_DoDisplay(void);
 269 extern int DEBUG_DelDisplay(int displaynum);
 270 extern int DEBUG_InfoDisplay(void);
 271
 272   /* debugger/hash.c */
 273 extern struct name_hash * DEBUG_AddSymbol( const char *name,
 274                                            const DBG_VALUE *addr,
 275                                            const char *sourcefile,
 276                                            int flags);
 277 extern BOOL DEBUG_GetSymbolValue( const char * name, const int lineno,
 278                                   DBG_VALUE *addr, int );
 279 extern BOOL DEBUG_SetSymbolValue( const char * name, const DBG_VALUE *addr );
 280 extern const char * DEBUG_FindNearestSymbol( const DBG_ADDR *addr, int flag,
 281                                              struct name_hash ** rtn,
 282                                              unsigned int ebp,
 283                                              struct list_id * source);
 284 extern void DEBUG_ReadSymbolTable( const char * filename );
 285 extern void DEBUG_AddLineNumber( struct name_hash * func, int line_num,
 286                                  unsigned long offset );
 287 extern struct wine_locals *
 288             DEBUG_AddLocal( struct name_hash * func, int regno,
 289                             int offset,
 290                             int pc_start,
 291                             int pc_end,
 292                             char * name);
 293 extern int DEBUG_CheckLinenoStatus(const DBG_ADDR *addr);
 294 extern void DEBUG_GetFuncInfo(struct list_id * ret, const char * file,
 295                               const char * func);
 296 extern int DEBUG_SetSymbolSize(struct name_hash * sym, unsigned int len);
 297 extern int DEBUG_SetSymbolBPOff(struct name_hash * sym, unsigned int len);
 298 extern int DEBUG_GetSymbolAddr(struct name_hash * sym, DBG_ADDR * addr);
 299 extern int DEBUG_cmp_sym(const void * p1, const void * p2);
 300 extern BOOL DEBUG_GetLineNumberAddr( struct name_hash *, const int lineno,
 301                                      DBG_ADDR *addr, int bp_flag );
 302
 303 extern int DEBUG_SetLocalSymbolType(struct wine_locals * sym,
 304                                     struct datatype * type);
 305 extern BOOL DEBUG_Normalize(struct name_hash * nh );
 306
 307   /* debugger/info.c */
 308 extern void DEBUG_PrintBasic( const DBG_VALUE* value, int count, char format );
 309 extern struct symbol_info DEBUG_PrintAddress( const DBG_ADDR *addr,
 310                                               int addrlen, int flag );
 311 extern void DEBUG_Help(void);
 312 extern void DEBUG_HelpInfo(void);
 313 extern struct symbol_info DEBUG_PrintAddressAndArgs( const DBG_ADDR *addr,
 314                                                      int addrlen,
 315                                                      unsigned int ebp,
 316                                                      int flag );
 317 extern void DEBUG_InfoClass(const char* clsName);
 318 extern void DEBUG_WalkClasses(void);
 319 extern void DEBUG_WalkModref(DWORD p);
 320 extern void DEBUG_DumpModule(DWORD mod);
 321 extern void DEBUG_WalkModules(void);
 322 extern void DEBUG_WalkProcess(void);
 323 extern void DEBUG_WalkThreads(void);
 324 extern void DEBUG_DumpQueue(DWORD q);
 325 extern void DEBUG_WalkQueues(void);
 326 extern void DEBUG_InfoSegments(DWORD s, int v);
 327 extern void DEBUG_InfoVirtual(void);
 328 extern void DEBUG_InfoWindow(HWND hWnd);
 329 extern void DEBUG_WalkWindows(HWND hWnd, int indent);
 330
 331   /* debugger/memory.c */
 332 extern int DEBUG_ReadMemory( const DBG_ADDR *address );
 333 extern void DEBUG_WriteMemory( const DBG_ADDR *address, int value );
 334 extern void DEBUG_ExamineMemory( const DBG_VALUE *addr, int count, char format);
 335 extern void DEBUG_InvalAddr( const DBG_ADDR* addr );
 336 extern void DEBUG_InvalLinAddr( void* addr );
 337 #ifdef __i386__
 338 extern void DEBUG_GetCurrentAddress( DBG_ADDR * );
 339 extern DWORD DEBUG_ToLinear( const DBG_ADDR *address );
 340 extern void DEBUG_FixAddress( DBG_ADDR *address, DWORD def );
 341 extern BOOL DEBUG_FixSegment( DBG_ADDR* addr );
 342 extern int  DEBUG_GetSelectorType( WORD sel );
 343 extern int  DEBUG_IsSelectorSystem( WORD sel );
 344 #endif
 345
 346   /* debugger/module.c */
 347 extern int  DEBUG_LoadEntryPoints( const char * prefix );
 348 extern void DEBUG_LoadModule32( const char* name, HANDLE hFile, DWORD base );
 349 extern DBG_MODULE* DEBUG_AddModule(const char* name, int type,
 350                                    void* mod_addr, HMODULE hmod);
 351 extern DBG_MODULE* DEBUG_FindModuleByName(const char* name, int type);
 352 extern DBG_MODULE* DEBUG_FindModuleByHandle(HANDLE handle, int type);
 353 extern DBG_MODULE* DEBUG_RegisterPEModule(HMODULE, u_long load_addr, const char* name);
 354 extern DBG_MODULE* DEBUG_RegisterELFModule(u_long load_addr, const char* name);
 355 extern void DEBUG_InfoShare(void);
 356
 357   /* debugger/msc.c */
 358 extern int DEBUG_RegisterMSCDebugInfo(DBG_MODULE* module, HANDLE hFile, void* nth, unsigned long nth_ofs);
 359 extern int DEBUG_RegisterStabsDebugInfo(DBG_MODULE* module, HANDLE hFile, void* nth, unsigned long nth_ofs);
 360 extern void DEBUG_InitCVDataTypes(void);
 361
 362   /* debugger/registers.c */
 363 extern void DEBUG_SetRegister( enum debug_regs reg, int val );
 364 extern int DEBUG_GetRegister( enum debug_regs reg );
 365 extern void DEBUG_InfoRegisters(void);
 366 extern BOOL DEBUG_ValidateRegisters(void);
 367 extern int DEBUG_PrintRegister(enum debug_regs reg);
 368
 369   /* debugger/stack.c */
 370 extern void DEBUG_InfoStack(void);
 371 extern void DEBUG_BackTrace(BOOL noisy);
 372 extern int  DEBUG_InfoLocals(void);
 373 extern int  DEBUG_SetFrame(int newframe);
 374 extern int  DEBUG_GetCurrentFrame(struct name_hash ** name,
 375                                   unsigned int * eip,
 376                                   unsigned int * ebp);
 377
 378   /* debugger/stabs.c */
 379 extern int DEBUG_ReadExecutableDbgInfo(const char* exe_name);
 380 extern int DEBUG_ProcessElfObject(const char* filename, unsigned int load_offset);
 381 extern int DEBUG_ParseStabs(char * addr, unsigned int load_offset, unsigned int staboff,
 382                             int stablen, unsigned int strtaboff, int strtablen);
 383
 384   /* debugger/types.c */
 385 extern int DEBUG_nchar;
 386 extern void DEBUG_InitTypes(void);
 387 extern struct datatype * DEBUG_NewDataType(enum debug_type xtype,
 388                                            const char * typename);
 389 extern unsigned int DEBUG_TypeDerefPointer(const DBG_VALUE *value, struct datatype ** newtype);
 390 extern int DEBUG_AddStructElement(struct datatype * dt,
 391                                   char * name, struct datatype * type,
 392                                   int offset, int size);
 393 extern int DEBUG_SetStructSize(struct datatype * dt, int size);
 394 extern int DEBUG_SetPointerType(struct datatype * dt, struct datatype * dt2);
 395 extern int DEBUG_SetArrayParams(struct datatype * dt, int min, int max,
 396                                 struct datatype * dt2);
 397 extern void DEBUG_Print( const DBG_VALUE *addr, int count, char format, int level );
 398 extern unsigned int DEBUG_FindStructElement(DBG_VALUE * addr,
 399                                             const char * ele_name, int * tmpbuf);
 400 extern struct datatype * DEBUG_GetPointerType(struct datatype * dt);
 401 extern int DEBUG_GetObjectSize(struct datatype * dt);
 402 extern unsigned int DEBUG_ArrayIndex(const DBG_VALUE * addr, DBG_VALUE * result, int index);
 403 extern struct datatype * DEBUG_FindOrMakePointerType(struct datatype * reftype);
 404 extern long long int DEBUG_GetExprValue(const DBG_VALUE * addr, char ** format);
 405 extern int DEBUG_SetBitfieldParams(struct datatype * dt, int offset,
 406                                    int nbits, struct datatype * dt2);
 407 extern int DEBUG_CopyFieldlist(struct datatype * dt, struct datatype * dt2);
 408 extern enum debug_type DEBUG_GetType(struct datatype * dt);
 409 extern struct datatype * DEBUG_TypeCast(enum debug_type, const char *);
 410 extern int DEBUG_PrintTypeCast(const struct datatype *);
 411 extern int DEBUG_PrintType( const DBG_VALUE* addr );
 412
 413   /* debugger/source.c */
 414 extern void DEBUG_ShowDir(void);
 415 extern void DEBUG_AddPath(const char * path);
 416 extern void DEBUG_List(struct list_id * line1, struct list_id * line2,
 417                        int delta);
 418 extern void DEBUG_NukePath(void);
 419 extern void DEBUG_Disassemble( const DBG_VALUE *, const DBG_VALUE*, int offset );
 420
 421   /* debugger/external.c */
 422 extern void DEBUG_ExternalDebugger(void);
 423
 424   /* debugger/dbg.y */
 425 extern BOOL DEBUG_Main( BOOL is_debug, BOOL force, DWORD code );
 426 extern void DEBUG_Exit( DWORD );
 427
 428   /* debugger/winedbg.c */
 429 #define DBG_CHN_MESG    1
 430 #define DBG_CHN_ERR     2
 431 #define DBG_CHN_WARN    4
 432 #define DBG_CHN_FIXME   8
 433 #define DBG_CHN_TRACE   16
 434 extern int DEBUG_Printf(int chn, const char* format, ...);
 435
 436   /* Choose your allocator! */
 437 #if 1
 438 /* this one is libc's fast one */
 439 extern void*    DEBUG_XMalloc(size_t size);
 440 extern void*    DEBUG_XReAlloc(void *ptr, size_t size);
 441 extern char*    DEBUG_XStrDup(const char *str);
 442
 443 #define DBG_alloc(x)            DEBUG_XMalloc(x)
 444 #define DBG_realloc(x,y)        DEBUG_XReAlloc(x,y)
 445 #define DBG_free(x)             free(x)
 446 #define DBG_strdup(x)           DEBUG_XStrDup(x)
 447 #else
 448 /* this one is slow (takes 5 minutes to load the debugger on my machine),
 449    but is pretty crash-proof (can step through malloc() without problems,
 450    malloc() arena (and other heaps) can be totally wasted and it'll still
 451    work, etc... if someone could make optimized routines so it wouldn't
 452    take so long to load, it could be made default) */
 453 #include "heap.h"
 454 #define DBG_alloc(x) HeapAlloc(dbg_heap,0,x)
 455 #define DBG_realloc(x,y) HeapRealloc(dbg_heap,0,x,y)
 456 #define DBG_free(x) HeapFree(dbg_heap,0,x)
 457 #define DBG_strdup(x) HEAP_strdupA(dbg_heap,0,x)
 458 #define DBG_need_heap
 459 extern HANDLE dbg_heap;
 460 #endif
 461
 462 #define DEBUG_STATUS_OFFSET             0x80003000
 463 #define DEBUG_STATUS_INTERNAL_ERROR     (DEBUG_STATUS_OFFSET+0)
 464 #define DEBUG_STATUS_NO_SYMBOL          (DEBUG_STATUS_OFFSET+1)
 465 #define DEBUG_STATUS_DIV_BY_ZERO        (DEBUG_STATUS_OFFSET+2)
 466 #define DEBUG_STATUS_BAD_TYPE           (DEBUG_STATUS_OFFSET+3)
 467
 468 #define  DBG_IVAR(_var) DEBUG_IV_##_var
 469 #define  INTERNAL_VAR(_var,_val) extern int DBG_IVAR(_var);
 470 #include "intvar.h"
 471 #undef   INTERNAL_VAR
 472
 473 #endif  /* __WINE_DEBUGGER_H */